Introduction: Miniature Concrete Hoover Dam

About: I am Educate Students to make Science Projects for Schools and Collage.

In this lesson, we'll create a little version of a working arch dam similar to the Hoover Dam. On the boundary of the American states of Nevada and Arizona, in the Black Canyon of the Colorado River, sits the Hoover Dam, a concrete arch-gravity structure.

The Hoover Dam was formerly the tallest dam in the world. In this video, you may learn how to build a dam.


We used simple items, like these, to build this dam.

1) Steel wires

2) Sun board sheet

3) Geared Motor

4) Cement

5) Sand

6) Water

7) 3d Printer

Step 1: Excavation and Foundation

For this arch dam, hilly terrain is first required. using tools to excavate a 2 foot curve similar to picture 1. Then cut cardboard in accordance with the ground you dug up and drill holes for steel wire reinforcement.

Steel wires are used in place of steel bars. Vertically insert steel bars into each hole. Place the horizontal steel bars at a distance of 1 inch after the vertical steel bars.Then use tiny wire to connect these bars.

Then Remove the cardboard reinforcement from the base.

Step 2: RCC of Foundation

Utilizing cement, sand, and water, create RCC for foundation filling. After that, carefully add foundation with this mixer, and wait 24 hours for it to set.

Step 3: Foundation Formwork

Then, take some steel bars, arrange horizontal stirrups as shown, and connect with thin wire.

After that, cut a sun board sheet to the formwork's size and curl it around the steel bars.

Step 4: Support and RCC of Formwork

After that, support the formwork and prepare a cement and water mixer. Carefully fill this formwork with the RCC mixer. For RCC, use the Mini Vibrator to avoid bubbles.

Give the concrete another 24 hours to harden. 

Step 5: Remove Formwork

When ought formwork to be taken down? 

Concrete formwork removal, also known as strike-off or stripping of formwork, should only be done once the concrete has developed adequate strength, which is at least twice as much stress as the concrete may experience when the formworks are removed.

Remove the support first, and then carefully remove the sunbord sheet. The concrete has a beautiful polish.

Step 6: Doors

Then make two motorized sliding doors sing 3d printer for the water storage's outflow. If you don't have a 3D printer, you can still create these doors by hand. Placed on this structure after being made, the doors have formwork on either side of them.

Step 7: Doors RCC

Fill the concrete mixer with the formwork and allow it to set for 24 hours. Next, remove the formwork as shown in the images.

Step 8: Second Formwork

Get steel bars and arrange them horizontally as in photographs after that. Next, cover both sides of the formwork with a sunbord sheet. Add a sunbord sheet road to this dam so that both cars and people can pass across it.

Step 9: RCC of Road

Then make a concrete mixer and carefully fill it. To prevent bubbles on concrete, use a vibrator. Give this concrete 24 hours to set. After that, delete the formwork shown in the picture. The finished Curved dam is visible.

Step 10: Automation of Doors

We used a miniature geared motor to open and close these dam doors. Incorporate a microgeared motor into the shell and attach a wire. The screw of these sliding doors is attached to the shaft of the gear motor. Doors open and close when we turn the gear motor in a clockwise direction.

Step 11: Road Railling

For safety, install railing along this road of doors.

Step 12: Working

It is now time to put this dam into action. Fill this dam's backside with water. Then press the door opener to let the doors of this curve dam open. You can see the water moving.

Watch the entire video for a step-by-step reference.

Big and Small Contest

Finalist in the
Big and Small Contest